A simple route towards high-concentration surfactant-free graphene dispersions

被引：47

作者：

Li, Jiantong ^{[1
]}

Ye, Fei ^{[1
]}

Vaziri, Sam ^{[1
]}

Muhammed, Mamoun ^{[1
]}

Lemme, Max C. ^{[1
]}

Ostling, Mikael ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Sch Informat & Commun Technol, SE-16440 Kista, Sweden

来源：

CARBON | 2012年 / 50卷 / 08期

基金：

欧洲研究理事会;

关键词：

SOLVENT EXFOLIATION;

D O I：

10.1016/j.carbon.2012.03.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple solvent exchange method is introduced to prepare high-concentration and surfactant-free graphene liquid dispersion. Natural graphite flakes are first exfoliated into graphene in dimethylformamide (DMF). DMF is then exchanged by terpineol through distillation, relying on their large difference in boiling points. Graphene can then be concentrated thanks to the volume difference between DMF and terpineol. The concentrated graphene dispersions are used to fabricate transparent conductive thin films, which possess comparable properties to those prepared by more complex methods. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：3113 / 3116

页数：4

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